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5bcf6265f2
glibc/sysdeps/x86
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Noah Goldstein 5bcf6265f2 x86: Disable non-temporal memset on Skylake Server 
The original commit enabling non-temporal memset on Skylake Server had
erroneous benchmarks (actually done on ICX).

Further benchmarks indicate non-temporal stores may in fact by a
regression on Skylake Server.

This commit may be over-cautious in some cases, but should avoid any
regressions for 2.40.

Tested using qemu on all x86_64 cpu arch supported by both qemu +
GLIBC.

Reviewed-by: DJ Delorie <dj@redhat.com>
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2024-07-16 17:20:18 +08:00
..
bits login: structs utmp, utmpx, lastlog _TIME_BITS independence (bug 30701) 2024-04-19 14:38:17 +02:00
fpu math: x86 trunc traps when FE_INEXACT is enabled (BZ 31603) 2024-04-04 14:29:28 -03:00
htl Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
include x86: Disable non-temporal memset on Skylake Server 2024-07-16 17:20:18 +08:00
nptl Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sys/platform x86-64/cet: Make CET feature check specific to Linux/x86 2024-01-11 20:35:24 -08:00
__longjmp_cancel.S x86-64/cet: Check the restore token in longjmp 2024-01-04 13:38:26 -08:00
abi-note.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
atomic-machine.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
cacheinfo.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
cacheinfo.h x86: Add seperate non-temporal tunable for memset 2024-05-30 12:36:09 -05:00
configure Convert to autoconf 2.72 (vanilla release, no distribution patches) 2024-06-17 21:15:28 +02:00
configure.ac x86: Properly set x86 minimum ISA level [BZ #31883] 2024-06-12 14:27:54 -07:00
cpu-features-offsets.sym x86-64: Update _dl_tlsdesc_dynamic to preserve AMX registers 2024-02-29 04:30:01 -08:00
cpu-features.c x86: Disable non-temporal memset on Skylake Server 2024-07-16 17:20:18 +08:00
cpu-tunables.c x86: Disable non-temporal memset on Skylake Server 2024-07-16 17:20:18 +08:00
dl-cacheinfo.h x86: Disable non-temporal memset on Skylake Server 2024-07-16 17:20:18 +08:00
dl-diagnostics-cpu.c x86: Add seperate non-temporal tunable for memset 2024-05-30 12:36:09 -05:00
dl-get-cpu-features.c x86: In ld.so, diagnose missing APX support in APX-only builds 2024-04-25 17:20:28 +02:00
dl-hwcap2.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-hwcap.h elf: Remove HWCAP_IMPORTANT 2024-06-18 10:45:36 +02:00
dl-isa-level.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-minsigstacksize.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-new-hash.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-procinfo.c elf: Remove _DL_PLATFORMS_COUNT 2024-06-18 10:45:36 +02:00
dl-procinfo.h elf: Remove _DL_PLATFORMS_COUNT 2024-06-18 10:45:36 +02:00
dl-prop.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-tunables.list x86: Add seperate non-temporal tunable for memset 2024-05-30 12:36:09 -05:00
elf-initfini.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
elide.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
features-offsets.sym x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers 2024-02-28 09:02:56 -08:00
float128-abi.h Move __isnanf128 to libc.so 2021-03-30 14:58:19 +05:30
fpu_control.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
get-cpuid-feature-leaf.c x86-64/cet: Make CET feature check specific to Linux/x86 2024-01-11 20:35:24 -08:00
get-isa-level.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
hp-timing.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
init-arch.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
isa-ifunc-macros.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
isa-level.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
isa-level.h x86: Properly set x86 minimum ISA level [BZ #31883] 2024-06-12 14:27:54 -07:00
jmp_buf-ssp.sym x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
ldbl2mpn.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
ldsodefs.h i386: Remove CET support bits 2024-01-10 05:20:20 -08:00
libc-start.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
link_map.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
linkmap.h Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
longjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Makeconfig Add _Float64x function aliases. 2017-11-27 14:16:47 +00:00
Makefile x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers 2024-02-28 09:02:56 -08:00
readelflib.c Remove ia64-linux-gnu 2024-01-08 17:09:36 -03:00
sysdep.h x86-64: Allocate state buffer space for RDI, RSI and RBX 2024-03-18 19:45:13 -07:00
tininess.h Use sysdeps/x86/tininess.h for i386 and x86_64 2012-10-30 20:38:31 -07:00
tst-cpu-features-cpuinfo-static.c x86: Add PTWRITE feature detection [BZ #27346] 2021-02-07 08:01:14 -08:00
tst-cpu-features-cpuinfo.c x86: Don't check XFD against /proc/cpuinfo 2024-02-28 11:50:38 -08:00
tst-cpu-features-supports-static.c x86: Add PTWRITE feature detection [BZ #27346] 2021-02-07 08:01:14 -08:00
tst-cpu-features-supports.c i386: Disable Intel Xeon Phi tests for GCC 15 and above (BZ 31782) 2024-05-27 12:28:13 -07:00
tst-get-cpu-features-static.c Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00
tst-get-cpu-features.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-gnu2-tls2.c x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers 2024-02-28 09:02:56 -08:00
tst-hwcap-tunables.c x86: Disable non-temporal memset on Skylake Server 2024-07-16 17:20:18 +08:00
tst-ifunc-isa-1-static.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-ifunc-isa-2-static.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-ifunc-isa.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-isa-level-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-isa-level-mod-1-baseline.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v2.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v3.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v4.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-ldbl-nonnormal-printf.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-memchr-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-memcmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-memmove-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-memrchr-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-memset-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-setjmp-cet.c x86: Set header.feature_1 in TCB for always-on CET [BZ #27177] 2021-01-13 05:03:34 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strcasecmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strchr-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strcmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strcpy-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-string-rtm.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strlen-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strncasecmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strncmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-strrchr-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-sysconf-cache-linesize-static.c x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444] 2021-03-15 05:43:26 -07:00
tst-sysconf-cache-linesize.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-wcscmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-wcsncmp-rtm.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
utmp-size.h login: Check default sizes of structs utmp, utmpx, lastlog 2024-04-19 14:38:17 +02:00
Versions <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00